TRX7033X

Overview

The Traxxas Aluminium Pivot Ball Caps are an essential upgrade for any RC enthusiast running 1/16 scale Traxxas vehicles in the UK. These precision-engineered suspension components are designed to eliminate the loose ball joint problems that plague standard hub assemblies on models such as the E-Revo VXL, Slash, Rally, Revo and Summit. Whether you're a seasoned RC basher or new to the hobby, these caps represent one of the most cost-effective improvements you can make to your ready to run RC car or truck, delivering noticeable improvements in handling, durability and overall driving experience.

Available in a pack of eight pieces with an included 5mm hex wrench, these threaded aluminium caps have been hard-anodised and coated with PTFE (polytetrafluoroethylene) to ensure smooth operation and exceptional longevity. The hard-anodised finish provides superior corrosion resistance and durability, making them ideal for outdoor use in all UK weather conditions. The PTFE coating acts as a dry lubricant, allowing the pivot ball joints to articulate freely without binding or stiffness, which is particularly important when you're pushing your RC model to its limits on the track or in the garden.

Many UK RC hobbyists report that the stock pivot ball caps on 1/16 Traxxas models develop excessive play over time, leading to imprecise handling and reduced control. These upgraded aluminium caps solve that problem completely, taking all the slop out of your ball joints and delivering the tight, responsive feel that serious RC enthusiasts demand. Installation is straightforward for anyone with basic mechanical knowledge, and the included hex wrench makes setup quick and easy.

Key Features

• Hard-anodised aluminium construction — The caps are manufactured from high-quality threaded aluminium that has been hard-anodised to create a wear-resistant surface layer, protecting against corrosion and ensuring long-term durability even when your RC vehicle is exposed to moisture and muddy conditions typical of UK outdoor use.
• PTFE coating for smooth articulation — The polytetrafluoroethylene (PTFE) coating provides a dry lubricant surface that allows the pivot ball joints to move freely without stiffness or binding, resulting in more responsive steering and suspension movement throughout your driving session.
• Eliminates pivot ball looseness — These caps directly address the common issue of loose ball joints that develop in standard hub assemblies, removing all play and restoring the tight, precise handling characteristics your RC model should have from the factory.
• Eight-piece pack — The set includes eight caps, providing complete coverage for your 1/16 scale vehicle's suspension system and allowing for replacement or upgrades to multiple vehicles if you run more than one RC car or truck.
• Included 5mm hex wrench — A dedicated hex key is provided in the box, ensuring you have the correct tool to install and adjust the caps without needing to source additional equipment.
• Compatible with multiple 1/16 Traxxas models — Designed specifically for 1/16 scale Traxxas vehicles including the E-Revo VXL, Slash, Rally, Revo and Summit, making this an essential upgrade for anyone with these popular ready to run RC models.
• Simple installation — Users consistently report that these caps are very easy to fit, requiring no special skills or knowledge, making them an accessible upgrade even for novice RC enthusiasts new to modification and tuning.
• Superior to alternative solutions — Many UK RC enthusiasts have found these caps to be a better and more affordable solution than aftermarket RPM axle carriers and hubs, offering equivalent or better performance at a fraction of the cost.

Technical Performance

The Traxxas Aluminium Pivot Ball Caps represent a significant engineering improvement over standard plastic hub components found on stock 1/16 scale RC vehicles. Manufactured from threaded aluminium and processed through hard-anodising, these caps undergo an electrochemical process that converts the surface of the aluminium into a corrosion-resistant oxide coating. This treatment dramatically improves wear resistance, surface hardness and longevity compared to untreated aluminium or plastic alternatives. The addition of a PTFE (Teflon) coating creates an exceptionally low-friction surface that eliminates stiction (static friction) and binding in the pivot ball joint assembly. This is particularly important in the demanding environment of RC motorsport, where even tiny amounts of friction can translate into sluggish steering response and imprecise handling. The threaded design allows for precise adjustment and securement, ensuring that once installed, the caps remain perfectly positioned without risk of loosening during hard driving. Users across the UK have confirmed that these caps dramatically improve the feel and responsiveness of their 1/16 RC models, taking the vast majority of slop and play out of the suspension system. The engineering approach of upgrading the pivot point itself—rather than replacing entire hub assemblies—means you retain the original geometry and performance characteristics of your vehicle while gaining the benefits of premium suspension geometry and component quality.

What's in the Box

• Eight aluminium pivot ball caps (hard-anodised with PTFE coating)
• 5mm hex wrench for installation and adjustment

Frequently Asked Questions

• Will these pivot ball caps fit my 1/16 scale Traxxas RC car? — These caps are specifically designed for 1/16 scale Traxxas vehicles including the E-Revo VXL, Slash, Rally, Revo and Summit. If you own one of these models, these caps will fit perfectly and are a direct upgrade to your suspension system.
• What is the difference between these caps and the standard plastic ones that come on my RC model? — The stock caps on most 1/16 Traxxas vehicles are plastic and tend to develop excessive play and looseness over time, particularly with heavy use. These aluminium caps with hard-anodising and PTFE coating maintain a tight fit, eliminate play, and provide smoother articulation thanks to the low-friction Teflon coating.
• Are these pivot ball caps suitable for beginners and novice RC enthusiasts? — Absolutely. These caps are one of the best beginner-friendly upgrades you can make to a 1/16 Traxxas vehicle. Installation is straightforward and requires only the included hex wrench. Even if you've never modified an RC car before, you'll find these caps easy to install and the improvement to handling and feel is immediately noticeable.
• How do these compare to RPM aftermarket hubs and axle carriers? — Many experienced UK RC drivers report that these Traxxas aluminium pivot ball caps are superior to RPM alternatives, particularly in terms of cost-effectiveness. Whereas RPM hub upgrades require replacing your entire hub assembly, these caps provide a focused upgrade to the critical pivot ball joint using premium materials, and they cost significantly less. Users have found that these caps eliminate pivot ball pop-out issues and deliver better overall performance than RPM solutions.
• How difficult is it to install these caps? — Installation is very straightforward. The caps are threaded and simply screw into place on your pivot ball joints. Using the included 5mm hex wrench, you can have all eight caps installed in just a few minutes. No special tools, knowledge or expertise are required, making this an ideal first upgrade for anyone new to RC tuning.
• Will these caps reduce play in my suspension joints? — Yes, this is the primary purpose of these caps. Users consistently report that these aluminium caps with PTFE coating take most or all of the slop out of ball joints on the hubs, resulting in a much tighter, more responsive feel and dramatically improved handling precision.
• Can I use these caps on multiple 1/16 Traxxas vehicles? — The pack includes eight caps, which is enough for most 1/16 scale vehicles. If you run multiple RC cars or trucks, you could distribute the caps across your fleet or purchase additional packs for complete coverage on all your models.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas Aluminium caps, pivot ball (threaded aluminium, Hard-anodised with PTFE-coating) (8 pcs) / hex wrench, 5mm TRX7033X today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.